Kennewick, Washington Area Code
Kennewick, WA Area Codes are
Kennewick, WA is officially utilizing one area code which is area code 509.
In addition to Kennewick, WA area code information read more about area code 509 details and Washington area codes.
Kennewick, WA is located in Benton County and observes the Pacific Time Zone. View our Times by Area Code tool.
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